Finishing or packaging press for paper bags.



PATENTED DEC. 11, 1906.

0. B. DULIN. v FINISHING OB. PACKAGING PRESS FOR PAPER BAGS.

APPLICATION FILED 00T.8, 1904.

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0. Bi D ULIN. FINISHING 0R PACKAGING PRESS FOR PAPER BAGS.

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TINTTED STATES FINISHING OR PACKAGING PRESS FO R PAPER BAGS.

Specification of Letters Patent,

Patented Dec. 11, 1906. i

Application filed October 8, 1904:. Serial No. 227.674.

T0 aZZ whom, it may concern? Be it known that 1, CHARLES E. DULIN, a citizen of the United States, residing at Glens Falls, New York, have invented certain Improvements in Finishing or Packaging Presses for Paper Bags, of which the following is a specification.

The object of my invention is to improve the construction of finishing or packaging presses for paper bags, so that the plunger will be moved forward by power and automatically returned to its normal position after the package has been completed. This object I attain in the following manner, reference being had to the accompanying drawings, in which Figure 1 .is a plan view of my improved packaging-press. Fig. 2 is a longitudinal sectional view on the line 2 2, Fig. 1. Fig. 3 is a transverse sectional view on the line 3 3, Fig. 1. Fig. 4 is a sectional view on the line t 4, Fig. 1; and Figs. 5 and 6 are diagram views illustrating the method of packaging.

A is the base-plate of the machine, mounted on suitable supports A. In the base-plate is a table B, 011 which the bags to be formed into a package are mounted. This table in the present instance consists of plates 1) Z), having slotted arms I), which rest in grooves in the base A and are secured in position by screws 0, which pass through the slots. By this means the plates 1) b can be adjusted toward and from each other.

Hinged to each plate I) are extensions b and to the front of the base-plate A is secured an upright plate 0, against which the bags are placed for packing. This plate is slot-ted at c for the reception of the packaging-twine. Any number of slots may be provided, depending upon the number of strings employed. The twine passes through an opening a in the base-plate from spools mounted in any suitable manner under the machine.

The above-described mechanism is common to paper-bag-packaging presses.

, D is a plunger adapted to ways a in the I base-plate A and has a projecting head (Z,

carrying a frame E. I This frame has arms a, and secured to one arm is a plate 6, the plate being free of the other arm, so that when the package is made the wrapper is wrapped around this plate 6, and when the bag is finished it is removed from the machine laterally and withdrawn from the plate.

On the under side ofthe plunger D is a rack (1, with which meshes a pinion f 011 a sleeve F, carried by the powershaft G. This sleeve F is mounted in a bearing f, carried by a bracket (1 depending from the under side of the base-plate A, and this bearing has ribs which extend into grooves in the sleeve, so as to prevent it moving longitudinally, but allowing it to turn freely.

On the end of the sleeve opposite the pinion f is a head f carrying a clamp f which can be clamped tightly to the shaft, so that the shaft and sleeve turn together. By provid ing this sleeve and clamp the plunger can be adjusted in respect to the sleeve.

As before remarked, the shaft G passes through the sleeve and is mounted in a bearing 9 on a bracket a forming part of the base of the machine. Loosely mounted. on the shaft G is a beltpulley I-I, around which passes a belt from any source of power. The inner surface h of this pulley is beveled to form a clutch-face, and splined to the shaft is a clutch I, having a beveled face '1', provided with a friction-surface t. This clutch-face can be moved toward and from the pulley H, but being splinexl to the shaft must turn with it. The pulley, while free to turn on the shaft, is mounted between the bearing 9 and the collar 9, secured to the shaft.

The clutch I is grooved at i to receive fingers j on an arm of a lever J, pivoted at to a bracket J, secured to the under side of an extension A of the base A. Attached to the long arm of the lever J is a rod 75, connected to a foot-lever K, pivoted at 7c to the rear leg A of the machine and guided by lugs It on the front leg of the machine. A spring k attached. to the under side of the base plate A and to the lever K, tends to hold the lever K in the raised position.

In order to return the plunger to its nor mal position, I mount on the shaft G a doubleflanged wheel G, to which is attached a strap 9 carrying a weight 9", so that as seen as the clutch is released the weight will with-draw the plunger, holding it in its normal position until the clutch is again thrown in to move the plunger forward by power.

In order to release the clutch, I notch the rim i at t to receive a bolt n, actuated by a spring a, mounted in a cavity in the extension A of the base. In order to withdraw the bolt, I provide a pin of, which is carried by a lever N and extends into the bolt. The lever N is pivoted at n to the extension A Projecting from the extension A is a stop m,

which acts upon a beveled projection m and is for the purpose of throwing the clutch I out of contact with the driving-pulley H when the plunger is moved the proper distance forward.

As the clutch turns it will move the plunger forward, and the bolt 72, will spring into the notch i on the flange of the clutch when the plunger has moved forward to the proper point, retaining the plunger in this position while the bundle is being completed by the operator. As soon as the bundle is completed and removed from the machine the operator shifts the lever, withdrawing the bolt and allowing the weight to return the plunger to its normal position.

At the rear of the base-plate is a set-screw s, which is in line with the plunger, so that by adjusting this set-screw the rearward move ment of the plunger oan'be limited,

The method 'of making a bundle on this machine is as follows: The strings are passed through the opening a in the base-plate and are drawn over the table and through notches in the plate a. A sheet of paper as is then placed on the table, as shown in the diagram Fig. 5. A loose bundle of bags is placed on the paper, as shown in said figure, between the plate 6 and the plate*'c.--. The foot-lever K is then depressed, t'lirowingthe clutch I into contact with the driven pulley II, and the plunger is moved forward until the bolt n enters a notch i in the flange of the clutch and the stop m throws the clutch out of engagement with the pulley. The clutch is retained in this position while the operator wraps the free ends of the paper over the bundle of bags, as shown in Fig. 6, and ties the confining-strings. The strings are then cut and the bags removed laterally from the press as the paper is wrapped around the plate 6, carried by the plunger. The lever N is then actuated so as to withdraw the bolt n, and the weight g returns the plunger to its normal position, while the operator draws the strings from the spools, placing them in position in the notches of the back plate, and a sheet of wrapping-paper is placed in position to receive another bundle, when the above operation is repeated.

I claim as my invention- 1. The combination in a paper-bag-packaging press, of a base-plate, a table thereon, a plunger, a rack 011 the plunger, a pinion meshing with the rack, a sleeve carrying the pinion, a shaft upon which the sleeve is adjustably secured, a driven pulley on the shaft, a clutch arranged to slide on but turn with the shaft, means for throwing the clutch into the clutch when the plunger has reached its forward position, and means for withdrawing the plunger after it is released, substantially as described.

2. The combination in a paper-bag-packaging press, of a base-plate, a table thereon, a plunger, a shaft, gearing between the plunger and the shaft, a wheel on the shaft, a weighted strap suspended from said wheel for withdrawing the plunger, a driven pulley mounted on the shaft, a clutch arranged to turn with but slide upon the shaft and engage the pulley, means for throwing the clutch into engagement with the pulley, a spring-bolt arranged to engage the clutch, and a lever for actuating the bolt, substantially as described.

3. The combination in a papenb'ag-packaging machine, of a base-plate, a table thereon, a plunger, a shaft, gearing between the shaft and the plunger, a pulley loose on the shaft, a clutch arranged to turn with but slide on the shaft and engage the pulley, a

projection on the clutch, and a stop against which the projection strikes, said stop throwing the clutch out of engagement with the pulley when the plunger has reached its forward position, substantially as described.

4. The combination in a paper-bag-packaging press, of a base-plate mounted on suitable supports, a table, a plate at the front end of the table, a plunger, arms extending from the head of the plunger, a plate secured to said arms, the bags being compressed between the said plate and the front plate, a rack on the plunger, a shaft, a pinion thereon meshing with the rack, a pulley mounted on the shaft, a clutch arranged to turn with but slide upon the shaft, a lever having fingers engaging the clutch, said lever pivoted to a bracket depending from the base-plate, a footlever, a rod extending fromthe clutch-lever to the foot-lever, a spring for retaining the foot-lever in its retracted position, a weight for returning the plunger to its normal position, a stop for throwing out the clutch when the plunger is in its forward position, a bolt arranged to engage the clutch when the plunger is in its forward position, and a lever for operating the bolt, substantially as described. In. testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES E. DULIN.

Witnesses:

WILL. A. BARR, Jos. H. KLEIN. 

